Customized review info on drag and drop slide

Is this drag&drop slide configured as a question slide? The system variable cpInReviewMode is set globally to 1 for the quiz, when the user clicks on Review in the score slide.

I suspect, didn't check it, that the Pause command is causing issues. It means that the playhead will stop On Enter, maybe no time to show the hidden feedback. I suppose dd1 is 'feedback' that was set to be invisible in output? Can you try taking out the Pause command? You can increase the slide duration or add another button with a pause near the end of the slide. Of course, if you don't want to have a double pauze during Quiz time, that pause should be at the same time as the normal Submit button of D&D (1.5secs is default), and the Next button can be made visible during review with your conditional action.